title: A new method for respiratory-volume monitoring based on long-period fibre gratings.
abstract: Respiratory-volume monitoring is an indispensable part of mechanical ventilation. Here we present a new method of the respiratory-volume measurement based on a single fibre-optical long-period sensor of bending and the correlation between torso curvature and lung volume. Unlike the commonly used air-flow based measurement methods the proposed sensor is drift-free and immune to air-leaks. In the paper, we explain the working principle of sensors, a two-step calibration-test measurement procedure and present results that establish a linear correlation between the change in the local thorax curvature and the change of the lung volume. We also discuss the advantages and limitations of these sensors with respect to the current standards.
authors.forename: Marija
authors.initials: M
authors.lastname: Petrović
authors.forename: Jovana
authors.initials: J
authors.lastname: Petrović
authors.forename: Goran
authors.initials: G
authors.lastname: Simić
authors.forename: Igor
authors.initials: I
authors.lastname: Ilić
authors.forename: Aleksandar
authors.initials: A
authors.lastname: Danicić
authors.forename: Miodrag
authors.initials: M
authors.lastname: Vukcević
authors.forename: Bosko
authors.initials: B
authors.lastname: Bojović
authors.forename: Ljupco
authors.initials: L
authors.lastname: Hadzievski
authors.forename: Thomas
authors.initials: T
authors.lastname: Allsop
authors.forename: David J
authors.initials: DJ
authors.lastname: Webb
mesh_terms: D002138:Calibration; D005260:Female; D006801:Humans; D008176:Lung Volume Measurements / Q000379:methods*; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D055100:Optical Fibers; D013147:Spirometry; D013909:Thorax; D013990:Tidal Volume